نتایج جستجو برای: in vitro cultures

تعداد نتایج: 16987533  

Background Male infertility management has made significant progress during the past three decades, especially after the introduction of intracytoplasmic sperm injection (ICSI) in 1992. However, many boys and men still suffer from primary testicular failure due to acquired or genetic causes. New and novel treatments are needed to address these issues. Spermatogenesis originates from spermatogon...

A. A. Malik, A. R. Wani F. A. Bhat F. A. Lone K. A. Sofi M. Z. Khan

A study was conducted to investigate the effect of follicular size (small,

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زابل - دانشکده کشاورزی 1391

چکیده این پژوهش به منظور بررسی تغییرات ترکیب شیمیایی و بهبود قابلیت هضم سیلوی علف نی با افزودن اوره و تفاله مرکبات به روش in vitro و in situ انجام شد. جهت بررسی تغییرات ترکیبات شیمیایی، ابتدا 50 کیلوگرم علف نی جمع آوری و به قطعات 2-4 سانتی متری خرد گردید. سپس علوفه نی با سطوح (5/2 و 5 درصد اوره و 5، 10 و 15 درصد تفاله مرکبات) مخلوط و در سطل های پلاستیکی سیلو گردید. ترکیبات شیمیایی اندازه گیری...

Journal: :iranian journal of veterinary science and technology 0
sajjad sisakhtnezhad ahmad r. bahrami maryam m. matin hesam dehghani fatemeh b. rassouli madjid momeni-moghaddamd

poultry spermatogonial stem cells (sscs) have the potential to serve as a model for studying the basic biology of ssc and they can also be used for biotechnological purposes. however, the small number of sscs and the presence of the testicular somatic cells with sscs have limited their applications. therefore, this study was undertaken for the first time to investigate the effect of a serum-fre...

Journal: :South African Journal of Botany 2001

Ahmadi A, Mardani K Sadrkhanlou RA Salami S Zobeiri F,

Background: In the last few years, a marked decrease in male fertility has been reported. Environmental factors were recently suspected for this problem. The misuse of medicines especially antibiotics are among environmental factors that can affect reproductive system. Ciprofloxacin is a synthetic antibacterial agent belonging to the family of fluoroquinolones with a very broad spectrum effect ...

Journal: :Current Protocols in Toxicology 2019

Asgari V, Bakhtari A, Bonakdar E Hosseini SM Jafarpour F, Nasr-Esfahani MH

Background: While assisted reproductive techniques (ARTs) are considered to be safe, many concerns exist about the safety of these techniques. Two important and indispensable parts of these techniques are in vitro culture and vitrification. While much progress has been made in developing culture conditions, it remains suboptimal. In order to investigate the effect of culture medium on in vitro ...

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